CN105218023A - A kind of drift-sand foam material and preparation method - Google Patents

A kind of drift-sand foam material and preparation method Download PDF

Info

Publication number
CN105218023A
CN105218023A CN201510619032.4A CN201510619032A CN105218023A CN 105218023 A CN105218023 A CN 105218023A CN 201510619032 A CN201510619032 A CN 201510619032A CN 105218023 A CN105218023 A CN 105218023A
Authority
CN
China
Prior art keywords
sand
drift
foam
lime
cement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510619032.4A
Other languages
Chinese (zh)
Inventor
张云升
佘伟
蒋金洋
李司晨
张国荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southeast University
Original Assignee
Southeast University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Southeast University filed Critical Southeast University
Priority to CN201510619032.4A priority Critical patent/CN105218023A/en
Publication of CN105218023A publication Critical patent/CN105218023A/en
Pending legal-status Critical Current

Links

Abstract

The invention belongs to packing material field, tunnel, relate to a kind of drift-sand foam material and preparation method.The massfraction of each component of this aeolian sand foam material is as follows: cement: 47.0 ~ 19.8%, lime: 0.3 ~ 5.6%, aeolian sand: 12.8 ~ 57.9%, alumina-silica waste residue: 7.2 ~ 43.7%, hardening accelerator: 0.1 ~ 0.6%, whipping agent: 0.1 ~ 0.2%, water: 19.5 ~ 29.2%.Drift-sand foam material of the present invention, has good workability, and can realize Self-leveling, early strength development is fast, and bleeding of not easily emanating, Homogenizing of composition keeps good, the aeolian sand waste material simultaneously can also dissolving a large amount of, in tunnel, padding field application and development prospect is very wide.

Description

A kind of drift-sand foam material and preparation method
Technical field
The present invention relates to packing material field, tunnel, be specifically related to drift-sand foam material and preparation method.
Background technology
The annual coal consumption of current China, more than 3,500,000,000 tons, exceedes the over half of world's total amount.In order to meet huge coal demand, need every year dig the roadway of tens thousand of km and peel off the massif of several hundred million tons; Go through continuous exploitation for many years, leave a large amount of underground roadways, pit, underground.If these pits, underground process not in time, earth's surface big area sedimentation and massif landing will be caused, destroy physical environment, the life security of crisis industrial and agricultural production and the people.According to statistics, because of more than 180 places that cave in that cause of digging up mine, there is city that minery caves in more than 40 in the whole nation, the financial loss number caused every year 10,000,000,000.Therefore, worked-out section, pit subsidence problem is solved imperative.
Worked-out section backfill is the most direct and effective means of radical cure subsidence and Mining subsidence, but is also a global difficult problem simultaneously.For a long time, the main technology adopted comprises dry filling, hydraulic sand filling and consolidated fill three kinds of methods both at home and abroad.Cemented filling method for aggregate, forms slurry with cement or lime consolidating material through mix with rubble, river sand or tailings etc., then delivers to the mining methods of filling area with in-line pump conveying or flow by gravity mode.Compared with hydraulic sand filling, the cementing rear intensity of material of consolidated fill is large, can be used for burying dark, press large, weak-walled in thick above ore body, the inexorable trend using consolidated fill to become worked-out section to backfill.
Conventional cement bonded concrete compaction material uses silicate cement, and consumption is 150 ~ 300kg/m 3, water cement ratio about 1.2 ~ 1.3,28d concrete crushing strength 1.0 ~ 20.0MPa, cement accounts for 30 ~ 60% in consolidated fill cost.Therefore reducing cement consumption and cost, is find the effective way being applicable to mine new type filling material.Foam material utilizes foaming machine to be foamed in advance by foaming agent solution, is then joined in cementitious slurry to stir by bubble to form.By regulating foam expansion and changing the ultimate compression strength that water cement ratio regulates foam material; And waste residue, antiquated sand can be mixed in the preparation process of foam material, meet the needs of environment protection.
Wind-sandy Area, the northwestward, China Yulin is all almost that loose drift-sand covers, thickness 0-60m, and almost not even a blade of grass grows on ground, and every year because wrapping up in of strong wind is taken, under having a large amount of drift-sand depositions, seriously hinders local industrial and agricultural production.The particle diameter of drift-sand is 0.25-0.1mm, and nonuniformity coefficient is 1.2-2.0, and coefficient of curvature is 0.9-1.3, belongs to poor grain size distribution, is difficult to use in normal concrete.Make full use of these drift-sands, research and development drift-sand foam material, backfill local One's name is legion with it and there is the potential dangerous Coal Exploitation mining area that caves in, turning waste into wealth, will huge society, economy and environment benefit be produced.
Summary of the invention
Goal of the invention: the object of the present invention is to provide a kind of drift-sand foam material and preparation method, uses as pit backfill.Local a large amount of aeolian sand waste material can be made full use of on the one hand, the danger that minery caves in can be solved on the other hand, ensure the safety in production of mineral industry.
Technical scheme: the present invention is directed to the defect that current cement or lime base packing material exist high, a large amount of bleeding of cost, top and the bottom homogeneity difference, most of cement or lime gelling material is replaced by using a large amount of aeolian sands, foaming technique is utilized to generate a large amount of CABs (bubble cumulative volume more than 25%) in packing material inside, significantly reduce the high gel material content of price, the segregation bleeding simultaneously suppressing Conventional filling material easily to produce and the problem of homogeneity difference.
Its component and proportioning (mass percent) are:
Wherein:
Described cement is 32.5 or 42.5 ordinary Portland cements.
Described lime be without the unslaked lime of slaking or slaking after slaked lime.
Described aeolian sand is that strong wind wraps up in the fine sand taken, and particle diameter is 0.25-0.1mm, and nonuniformity coefficient is 1.2-2.0, and coefficient of curvature is 0.9-1.3.
Described alumina-silica waste residue is flyash, slag powders, slag, levigate colliery powder or mine tailings.
Described hardening accelerator is selected from the one in sodium aluminate, sodium sulfate or water glass.
Described whipping agent is selected from the one in protein whipping agent, synthesis class whipping agent or composite foamable agent.
Take required cement, lime and aeolian sand and alumina-silica waste residue by formula rate, dryly stir to Homogeneous phase mixing; Then slowly join in mixed powder by formula rate water, stir 2 to 3 minutes, after mixing, namely obtain described aeolian sand foam material.
Beneficial effect: compared with domestic and international similar technique, this achievement has following characteristic:
(1) aeolian sand foam material can be dissolved the industrial residues such as local abundant aeolian sand waste residue and flyash, slag powders, slag, levigate colliery powder, mine tailings, and turn waste into wealth, changes source of pollution are available resources, and environmental benefit is significantly, with low cost.(2) a large amount of CAB is introduced, and significantly can reduce the use of the high cement of price on the one hand; On the other hand, the ball effect of bubble also can make aeolian sand slurry have good mobility, the segregation bleeding that Conventional filling material simultaneously also can be suppressed easily to produce and the problem of homogeneity difference.(3) preparation process is simple, and energy consumption is low, facility investment is little, easy to operate.Drift-sand foam material prepared by the above-mentioned technology of integrated use, there is no this series products both at home and abroad.
In sum, due to the above-mentioned beneficial effect that the present invention has, have good workability, early strength development is fast, and bleeding of not easily emanating, Homogenizing of composition keeps good, the aeolian sand waste material simultaneously can also dissolving a large amount of, and simple to operate during construction, quality is easy to control, and is convenient to large-scale promotion application.
Embodiment
Embodiment 1:
Take required cement, lime and aeolian sand and alumina-silica waste residue by formula rate, dryly stir to Homogeneous phase mixing; Then slowly join in mixed powder by formula rate water, stir 2 to 3 minutes, mix shaping sample.Record its fundamental property as follows: 1. initial flow=degree 220mm; 2. 1h bleeding rate=3.5%; 3. wet density=1400kg/m 3; 4. 3d ultimate compression strength=1.73MPa, 4d ultimate compression strength=2.35MPa, 7d ultimate compression strength=7.8Mpa.
Embodiment 2:
Take required cement, lime and aeolian sand and alumina-silica waste residue by formula rate, dryly stir to Homogeneous phase mixing; Then slowly join in mixed powder by formula rate water, stir 2 to 3 minutes, mix shaping sample.
Record its fundamental property as follows: 1. initial flow=degree 215mm; 2. 1h bleeding rate=2.8%; 3. wet density=1560kg/m 3; 4. 3d ultimate compression strength=2.13MPa, 7d ultimate compression strength=8.2Mpa.
Embodiment 3:
Take required cement, lime and aeolian sand and alumina-silica waste residue by formula rate, dryly stir to Homogeneous phase mixing; Then slowly join in mixed powder by formula rate water, stir 2 to 3 minutes, mix shaping sample.
Record its fundamental property as follows: 1. initial flow=degree 250mm; 2. 1h bleeding rate=6.5%; 3. wet density=1280kg/m 3; 4. 3d ultimate compression strength=0.54MPa, 7d ultimate compression strength=3.5Mpa.
Embodiment 4:
Take required cement, lime and aeolian sand and alumina-silica waste residue by formula rate, dryly stir to Homogeneous phase mixing; Then slowly join in mixed powder by formula rate water, stir 2 to 3 minutes, mix shaping sample.
Record its fundamental property as follows: 1. initial flow=degree 180mm; 2. 1h bleeding rate=4.6%; 3. wet density=1500kg/m 3; 4. 3d ultimate compression strength=1.8MPa, 7d ultimate compression strength=4.5Mpa.
Embodiment 5:
Take required cement, lime and aeolian sand and alumina-silica waste residue by formula rate, dryly stir to Homogeneous phase mixing; Then slowly join in mixed powder by formula rate water, stir 2 to 3 minutes, mix shaping sample.
Record its fundamental property as follows: 1. initial flow=degree 230mm; 2. 1h bleeding rate=6.5%; 3. wet density=1450kg/m 3; 4. 3d ultimate compression strength=1.2MPa, 7d ultimate compression strength=3.2Mpa.

Claims (8)

1. a drift-sand foam material, is characterized in that the mass percent of each component of this drift-sand foam material is:
2. drift-sand foam material according to claim 1, is characterized in that, described cement is 32.5 or 42.5 ordinary Portland cements.
3. drift-sand foam material according to claim 1, is characterized in that, described lime be without the unslaked lime of slaking or slaking after slaked lime.
4. drift-sand foaming material slip according to claim 1, is characterized in that, described aeolian sand is that strong wind wraps up in the fine sand taken, and particle diameter is 0.25-0.1mm, and nonuniformity coefficient is 1.2-2.0, and coefficient of curvature is 0.9-1.3.
5. drift-sand foaming material slip according to claim 1, is characterized in that, described alumina-silica waste residue is flyash, slag powders, slag, levigate colliery powder or mine tailings.
6. drift-sand foaming material slip according to claim 1, it is characterized in that, described hardening accelerator is selected from the one in sodium aluminate, sodium sulfate or water glass.
7. drift-sand foaming material slip according to claim 1, is characterized in that, described whipping agent is selected from the one in protein whipping agent, synthesis class whipping agent or composite foamable agent.
8. a preparation method for drift-sand foam material as claimed in claim 1, is characterized in that: first take required cement, lime and aeolian sand and alumina-silica waste residue by formula rate, dryly stirs to Homogeneous phase mixing; Then slowly join in mixed powder by formula rate water, stir 2 to 3 minutes, after mixing, namely obtain described aeolian sand foam material.
CN201510619032.4A 2015-09-24 2015-09-24 A kind of drift-sand foam material and preparation method Pending CN105218023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510619032.4A CN105218023A (en) 2015-09-24 2015-09-24 A kind of drift-sand foam material and preparation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510619032.4A CN105218023A (en) 2015-09-24 2015-09-24 A kind of drift-sand foam material and preparation method

Publications (1)

Publication Number Publication Date
CN105218023A true CN105218023A (en) 2016-01-06

Family

ID=54987375

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510619032.4A Pending CN105218023A (en) 2015-09-24 2015-09-24 A kind of drift-sand foam material and preparation method

Country Status (1)

Country Link
CN (1) CN105218023A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106007636A (en) * 2016-05-09 2016-10-12 程寅 Salt-corrosion-resistant vesicle-mixed eolian sandy soil and preparing method thereof
CN106478001A (en) * 2016-11-16 2017-03-08 古浪县兴达新型环保建材有限公司 A kind of drift-sand is the production system of the aerated bricks of major ingredient
CN106588076A (en) * 2016-11-16 2017-04-26 古浪县兴达新型环保建材有限公司 Manufacturing method for aerated brick with aeolian sand as main materials
CN108083666A (en) * 2017-12-04 2018-05-29 鄂尔多斯市同圆库布其生态工业治沙有限责任公司 A kind of water-permeable brick and its manufacturing process
CN109250961A (en) * 2018-08-23 2019-01-22 北京四方如钢混凝土制品有限公司 A kind of building board and non-load bearing wall structure of the native moulding by casting of drift-sand foaming
CN110256033A (en) * 2019-03-22 2019-09-20 山东科技大学 High porosity foam body and preparation method thereof for goaf coal spontaneous combustion prevention and treatment
CN110330303A (en) * 2019-07-31 2019-10-15 河北充填采矿技术有限公司 A kind of filler and its application method
CN110372291A (en) * 2019-07-02 2019-10-25 太原理工大学 A kind of air bubble mix light-textured soil slurry and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102199023A (en) * 2011-04-06 2011-09-28 西安长庆科技工程有限责任公司 Building mortar prepared by using desert Aeolian sand and preparation method thereof
WO2011150608A1 (en) * 2010-05-31 2011-12-08 北京仁创科技集团有限公司 Composition used for high strength and watertight concrete
CN103011896A (en) * 2012-12-21 2013-04-03 王寿光 Foam concrete
CN103964798A (en) * 2014-04-29 2014-08-06 天地科技股份有限公司 Aeolian sand paste-like filling material for coal mine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011150608A1 (en) * 2010-05-31 2011-12-08 北京仁创科技集团有限公司 Composition used for high strength and watertight concrete
CN102199023A (en) * 2011-04-06 2011-09-28 西安长庆科技工程有限责任公司 Building mortar prepared by using desert Aeolian sand and preparation method thereof
CN103011896A (en) * 2012-12-21 2013-04-03 王寿光 Foam concrete
CN103964798A (en) * 2014-04-29 2014-08-06 天地科技股份有限公司 Aeolian sand paste-like filling material for coal mine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106007636A (en) * 2016-05-09 2016-10-12 程寅 Salt-corrosion-resistant vesicle-mixed eolian sandy soil and preparing method thereof
CN106007636B (en) * 2016-05-09 2019-03-26 程寅 A kind of bubble mixing drift-sand soil resistant to salt corrosion and preparation method thereof
CN106478001A (en) * 2016-11-16 2017-03-08 古浪县兴达新型环保建材有限公司 A kind of drift-sand is the production system of the aerated bricks of major ingredient
CN106588076A (en) * 2016-11-16 2017-04-26 古浪县兴达新型环保建材有限公司 Manufacturing method for aerated brick with aeolian sand as main materials
CN108083666A (en) * 2017-12-04 2018-05-29 鄂尔多斯市同圆库布其生态工业治沙有限责任公司 A kind of water-permeable brick and its manufacturing process
CN109250961A (en) * 2018-08-23 2019-01-22 北京四方如钢混凝土制品有限公司 A kind of building board and non-load bearing wall structure of the native moulding by casting of drift-sand foaming
CN110256033A (en) * 2019-03-22 2019-09-20 山东科技大学 High porosity foam body and preparation method thereof for goaf coal spontaneous combustion prevention and treatment
CN110256033B (en) * 2019-03-22 2021-07-30 山东科技大学 High-porosity foam for spontaneous combustion control of coal in goaf and preparation method thereof
CN110372291A (en) * 2019-07-02 2019-10-25 太原理工大学 A kind of air bubble mix light-textured soil slurry and preparation method thereof
CN110330303A (en) * 2019-07-31 2019-10-15 河北充填采矿技术有限公司 A kind of filler and its application method

Similar Documents

Publication Publication Date Title
CN105218023A (en) A kind of drift-sand foam material and preparation method
CN103449837B (en) Mining foam paste filling material prepared by utilizing synergistic foaming method and preparation method thereof
CN103979884B (en) A kind of method utilizing discarded concrete to prepare coal mine filling lotion
CN103193429B (en) Iron core tailing curing agent, iron core all-tailing cementing composition containing iron core tailing curing agent and application of iron core all-tailing cementing composition to gob of mine
CN102320803B (en) Self-compacting concrete prepared from iron ore tailings, and preparation method thereof
CN102557561A (en) High-performance sand-soil consolidation material, as well as preparation method and using method thereof
CN101792291B (en) High-water expansion filling material
CN101723622A (en) Foam tailings cemented filling material and manufacturing method thereof
CN110228990A (en) A kind of preparation method of full solid waste upper flow regime Paste-like body filler
CN102101788B (en) Red mud-based fluid swelling filling material
CN109626928B (en) Composite curing agent suitable for peat soil and preparation method thereof
CN102101790B (en) Tailing-based fluid swelling filling material
CN105601206A (en) Iron ore waste rock self-compaction concrete
CN103708748A (en) Modified phosphogypsum material used for sea reclamation
CN107176809A (en) A kind of grouting material and preparation method thereof
CN104609814A (en) Anti-aqueous dispersion synchronous grouting material with large specific gravity and low consistence
CN102976692A (en) Ore-powder-doped high-performance shotcrete applicable to underground watertight oil cellars and preparation method thereof
CN102320794A (en) High-strength concrete prepared by sea sand
CN102775084B (en) A kind of flyash, slag and utilization of coal gangue Application way
CN102444116A (en) Construction waste regenerated aggregate concrete pile and soil foundation treatment method thereof
CN103452586A (en) Gob expanding material prestressed filling method and prestressed filling material
CN104844108B (en) Like concrete filling material suitable for road large cavity goaf treatment
CN104230278B (en) A kind of colliery foamed cement and preparation and application thereof
CN102775105A (en) Mine paste filling aggregate prepared from building waste materials and preparation method of mine paste filling aggregate
CN107082604A (en) A kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160106

WD01 Invention patent application deemed withdrawn after publication